1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0 OR MIT
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * This is an implementation of the BLAKE2s hash and PRF functions.
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Information: https://blake2.net/
8*4882a593Smuzhiyun *
9*4882a593Smuzhiyun */
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #include <crypto/internal/blake2s.h>
12*4882a593Smuzhiyun #include <linux/types.h>
13*4882a593Smuzhiyun #include <linux/string.h>
14*4882a593Smuzhiyun #include <linux/kernel.h>
15*4882a593Smuzhiyun #include <linux/module.h>
16*4882a593Smuzhiyun #include <linux/init.h>
17*4882a593Smuzhiyun #include <linux/bug.h>
18*4882a593Smuzhiyun
blake2s_update(struct blake2s_state * state,const u8 * in,size_t inlen)19*4882a593Smuzhiyun void blake2s_update(struct blake2s_state *state, const u8 *in, size_t inlen)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun __blake2s_update(state, in, inlen, false);
22*4882a593Smuzhiyun }
23*4882a593Smuzhiyun EXPORT_SYMBOL(blake2s_update);
24*4882a593Smuzhiyun
blake2s_final(struct blake2s_state * state,u8 * out)25*4882a593Smuzhiyun void blake2s_final(struct blake2s_state *state, u8 *out)
26*4882a593Smuzhiyun {
27*4882a593Smuzhiyun WARN_ON(IS_ENABLED(DEBUG) && !out);
28*4882a593Smuzhiyun __blake2s_final(state, out, false);
29*4882a593Smuzhiyun memzero_explicit(state, sizeof(*state));
30*4882a593Smuzhiyun }
31*4882a593Smuzhiyun EXPORT_SYMBOL(blake2s_final);
32*4882a593Smuzhiyun
mod_init(void)33*4882a593Smuzhiyun static int __init mod_init(void)
34*4882a593Smuzhiyun {
35*4882a593Smuzhiyun if (!IS_ENABLED(CONFIG_CRYPTO_MANAGER_DISABLE_TESTS) &&
36*4882a593Smuzhiyun WARN_ON(!blake2s_selftest()))
37*4882a593Smuzhiyun return -ENODEV;
38*4882a593Smuzhiyun return 0;
39*4882a593Smuzhiyun }
40*4882a593Smuzhiyun
mod_exit(void)41*4882a593Smuzhiyun static void __exit mod_exit(void)
42*4882a593Smuzhiyun {
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun module_init(mod_init);
46*4882a593Smuzhiyun module_exit(mod_exit);
47*4882a593Smuzhiyun MODULE_LICENSE("GPL v2");
48*4882a593Smuzhiyun MODULE_DESCRIPTION("BLAKE2s hash function");
49*4882a593Smuzhiyun MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
50